如何修改SQL查询以考虑此特定过滤条件？

Question

我正在使用SQL Query 2014，我对我的数据库运行了以下T-SQL查询：

use My Database

SELECT * FROM 
(
SELECT a.ReservationStayID,
       c.PMSConfirmationNumber,
       a.StayDate,
       DATEPART(MONTH,a.StayDate) AS 'Month',
       DATEPART(YEAR,a.StayDate) AS 'Year',
       c.[MTH], 
       a.PackagePlanCode,
       c.[Market Segment Code],
       c.[CurrencyCode],
       a.RateAmount,
       SUM(a.RateAmount) OVER(PARTITION BY a.ReservationStayID) AS 'CUM_Rate',
       d.[Exchange Rate],
       ((a.RateAmount * d.[Exchange Rate])/1.15) AS 'PR',
       c.[PropertyCode],
       C.[Room Nights],
       c.[Tour Operator],
       c.[Group Booking ID],
       c.[Source of Business],
       c.[Booking Origin (1)], 
       c.[Market FINAL],
       c.[CreatedOn],
       c.[CreatedOn_RSD]

FROM ReservationStayDate a

INNER JOIN 

(SELECT *

FROM [RESERVATIONLIST]) c ON c.[ReservationStayID] = a.ReservationStayID and c.[MTH] = datename(m,StayDate) + ' ' + cast(datepart(yyyy,StayDate) as varchar)

INNER JOIN 

(SELECT *

FROM [PKGREVENUE]) d ON d.[ReservationStayID] = a.ReservationStayID AND d.[StayDate] = a.StayDate

WHERE c.[Status] <> 'CANCELED'
) q

WHERE q.CUM_Rate <> 0 

ORDER BY q.ReservationStayID, q.StayDate

以上查询运行正常但现在我想要包含一个过滤器，其中输出中包含以下ReservationStayID：152, 167, 658, 900

这些ReservationStayID都有CUM_Rate = 0，这意味着它们会自动排除在现有查询的输出中。

我尝试过以下但是没有用：

WHERE (q.CUM_Rate <> 0 AND q.ReservationStayId IN (152, 167, 658, 900))

如何添加此特定条件？

Answer 1

以下为ReservationStayID 152，167，658，900未出现在您的结果中的原因：

1. RESERVATIONLIST，WHERE STATUS <> 'CANCELED'
上没有行
2. PKGREVENUE
上没有匹配的行

要解决您的问题，您可能需要将INNER JOIN转换为LEFT JOIN。此外，您可能希望在CASE子句中使用SUM() OVER表达式。而不是在AND子句中使用WHERE，而应使用OR

SELECT * FROM (
    SELECT 
        --...,
        SUM(CASE 
                WHEN c.[Status] <> 'CANCELLED' THEN a.RateAmount
                ELSE 0
            END
            ) OVER(PARTITION BY a.ReservationStayID) AS 'CUM_Rate',
        --...
    FROM ReservationStayDate a
    LEFT  JOIN RESERVATIONLIST c    
        ON c.[ReservationStayID] = a.ReservationStayID 
        AND c.[MTH] = DATENAME(M, StayDate) + ' ' + CAST(DATEPART(YYYY,StayDate) AS VARCHAR)
        AND c.[Status] <> 'CANCELED'
    LEFT JOIN PKGREVENUEd 
        ON d.[ReservationStayID] = a.ReservationStayID
        AND d.[StayDate] = a.StayDate   
) q
WHERE 
    q.CUM_Rate <> 0
    OR q.ReservationStayId IN (152, 167, 658, 900)
ORDER BY q.ReservationStayID, q.StayDate

注意：我更改了部分JOIN以直接使用该表，而不是使用子查询和SELECT * FROM <table>。